Improved tooth form for a saw blade

Details Improved tooth form for a saw blade Improved tooth form for a saw blade

B - Operations, Transporting

27

B

B27B 33/02 (2006.01) B23D 61/12 (2006.01)

Patent

CA 2320904

In a saw blade (10) having a cutting edge defined by a plurality of teeth (12) disposed along the blade, each tooth includes a tip (14), a rake face (16), and a curvilinear base surface (20). The tip of each tooth and the tip of the next consecutively disposed tooth cooperate to define a pitch distance (P) therebetween, with the curvilinear base surface and the tip of each tooth cooperating to define a maximum gullet depth (H). In addition, the rake face and the curvilinear base surface of each tooth define an effective gullet radius (Reff) greater than about 25 % of the pitch distance, and also greater than about 55 % of the maximum gullet depth.

L'invention concerne une lame (10) de scie présentant un bord de coupe défini par une pluralité de dents (12) disposées le long de la lame. Chaque dent comprend une pointe (14), une face (16) de coupe et une surface (20) de base curviligne. La pointe de chaque dent et la pointe de la dent adjacente définissent ensemble une distance (P) d'écartement entre elles, et la surface de base curviligne et la pointe de chaque dent définissent ensemble une profondeur (H) de gorge maximale. En outre la face de coupe et la surface de base curviligne de chaque dent définissent un rayon (Reff) de gorge effectif supérieur à environ 25 % de la distance d'écartement, et supérieur à environ 55 % de la profondeur de gorge maximale.

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